S_WarpTransform

Warps the source clip by a combination of linear
transformations including scale, shear, zoom, rotation, and
translation.

In the Sapphire Distort effects submenu.

Inputs:

Source: The current layer. The input clip to be warped.

Matte: Defaults to None. If provided, the amplitude of warping is scaled
by the values of this input clip. Gray values internally scale the
warping amplitude rather than simply cross-fading between the effect
and the original source to allow more continuous results at the
matte edges and more detailed control over the warping amounts.
This input can be affected using the Blur Matte, Invert Matte, or
Matte Use parameters.

Parameters:

Z Dist: Default: 1, Range: 0.001 or greater.
Scales the 'distance' of the image. Values greater than 1.0
move it farther away and make it smaller. Values less then 1.0 move
the image closer and enlarge it. Note that Scale X and Y also scale
the size of the image, but in an inverse way and on each axis.

Reflect: repeats a mirrored copy. Edges are often less
visible with this method.

Filter: Check-box, Default: on.
If enabled, the image is adaptively filtered when it is
resampled. This gives a better quality result when parts of the image
are warped smaller.

Blur Matte: Default: 0, Range: 0 or greater.
Blurs the Matte input by this amount before using. This
can provide a smoother transition between the matted and unmatted
areas. It has no effect unless the Matte input is provided.

Invert Matte: Check-box, Default: off.
If on, inverts the Matte input so the effect is applied
to areas where the Matte is black instead of white. This has no effect
unless the Matte input is provided.

Matte Use: Popup menu, Default: Luma.
Determines how the Matte input channels are used to make
a monochrome matte.

Luma: the luminance of the RGB channels is used.

Alpha: only the Alpha channel is used.

Opacity: Popup menu, Default: Normal.
Determines the method used for dealing with
opacity/transparency.

All Opaque: Use this option to render slightly faster when
the input image is fully opaque with no transparency (alpha=1).

Normal: Process opacity normally.

As Premult: Process as if the image is already in
premultiplied form (colors have been scaled by opacity). This option
also renders slightly faster than Normal mode, but the results will
also be in premultiplied form, which is sometimes less correct.
If your image has sharp color changes where the matte
channel also has sharp edges, you may get better results with Normal
mode.